(Feel free to update this bug's summary to be more specific.)
Component Readiness has found a potential regression in the following test:

install should succeed: overall

Extreme regression detected.
Fishers Exact probability of a regression: 100.00%.
Test pass rate dropped from 98.80% to 69.23%.

Sample (being evaluated) Release: 4.22
Start Time: 2026-01-07T00:00:00Z
End Time: 2026-01-14T00:00:00Z
Success Rate: 69.23%
Successes: 9
Failures: 4
Flakes: 0
Base (historical) Release: 4.19
Start Time: 2025-05-18T00:00:00Z
End Time: 2025-06-17T00:00:00Z
Success Rate: 98.80%
Successes: 82
Failures: 1
Flakes: 0

View the test details report for additional context.

Filed by: jialiu@redhat.com

The installation failed without any workers provisioned because reached quota limit, most of them happened on azure-arm64 cluster profile

Example failed jobs:
https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-openshift-multiarch-master-nightly-4.22-ocp-e2e-upgrade-azure-ovn-multi-a-a/2011201792502665216/artifacts/ocp-e2e-upgrade-azure-ovn-multi-a-a/gather-extra/artifacts/machines.json

https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-openshift-multiarch-master-nightly-4.22-upgrade-from-stable-4.21-ocp-e2e-upgrade-azure-ovn-multi-a-a/2011201792360058880/artifacts/ocp-e2e-upgrade-azure-ovn-multi-a-a/gather-extra/artifacts/machines.json

https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-openshift-multiarch-master-nightly-4.22-ocp-e2e-upgrade-azure-ovn-multi-a-a/2009061250062880768/artifacts/ocp-e2e-upgrade-azure-ovn-multi-a-a/gather-extra/artifacts/machines.json

https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-openshift-multiarch-master-nightly-4.22-ocp-e2e-upgrade-azure-ovn-multi-a-a/2011278860217225216/artifacts/ocp-e2e-upgrade-azure-ovn-multi-a-a/gather-extra/artifacts/machines.json

https://prow.ci.openshift.org/view/gs/test-platform-results/logs/periodic-ci-openshift-multiarch-master-nightly-4.22-ocp-e2e-azure-ovn-multi-a-a/2011278870275166208

https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/periodic-ci-openshift-multiarch-master-nightly-4.22-upgrade-from-stable-4.21-ocp-e2e-upgrade-azure-ovn-multi-a-a/2011758863505690624/artifacts/ocp-e2e-upgrade-azure-ovn-multi-a-a/gather-extra/artifacts/machines.json